CN211188496U - Hemodialysis is with fixed protective sheath device of hemodialysis pipe - Google Patents
Hemodialysis is with fixed protective sheath device of hemodialysis pipe Download PDFInfo
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- CN211188496U CN211188496U CN201921772610.8U CN201921772610U CN211188496U CN 211188496 U CN211188496 U CN 211188496U CN 201921772610 U CN201921772610 U CN 201921772610U CN 211188496 U CN211188496 U CN 211188496U
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- hemodialysis
- upper cover
- inner shell
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Abstract
The utility model discloses a blood passes through with fixed protective sheath device of hemodialysis tube, including cylindrical shell, cylindrical upper cover, elastic component, cylindrical inner shell and end cap, the bottom of cylindrical shell is enclosed construction, and the upper end of cylindrical shell is open structure, and cylindrical upper cover spiro union is outside in the upper end of cylindrical shell, and elastic component installs on the inner diapire upper portion of cylindrical shell, and the bottom of cylindrical inner shell is enclosed construction, and the upper end of cylindrical inner shell is open structure, and the inside of cylindrical shell is placed to cylindrical inner shell, and the bottom of cylindrical inner shell and elastic component's the inconsistent setting in upper portion. The utility model discloses, it carries more conveniently, and the blood permeable tube receives the duplicate protection of cylindrical shell and cylindrical inner shell, and when taking out the blood permeable tube, can prevent that the blood permeable tube from receiving the scraping, and then effectively prevents the blood permeable tube and suffer the extrusion and damage to eliminate the threat that causes the treatment because of the blood permeable tube damage.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically be a hemodialysis is with fixed protective sheath device of hemodialysis pipe.
Background
The hemodialysis tube is a medical product required by hemodialysis, and the hemodialysis is one of kidney replacement treatment modes of patients with acute and chronic renal failure. The blood and electrolyte solution (dialysate) with similar concentration of organism are arranged inside and outside one hollow fiber by draining the blood in vivo to the outside of the body through a dialyzer consisting of a plurality of hollow fibers, and the material exchange is carried out by dispersion and convection, thereby removing the metabolic waste in the body and maintaining the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis.
The hemodialysis pipe is easy to be extruded when being placed, is extremely easy to damage and threatens treatment, therefore, the integrity of the hemodialysis pipe is very necessary to be protected, the Chinese patent with the current application number of CN201820978085.4 discloses a hemodialysis pipe fixing protective sleeve device, which has the advantages of anti-extrusion, reduction of damage and convenient taking, but still has the following problems in the using process:
1) in the process of taking out the hemodialysis tube, the hemodialysis tube often falls out of the placing groove when the placing plate is pulled, so that the hemodialysis tube is scraped with the inner wall of the main box body, and the hemodialysis tube is still damaged to a certain extent;
2) the whole body adopts a plate-shaped structure, so that the whole body has weaker compressive strength, and further the whole body is still easily pressed to deform or even fracture in the using process and still causes certain damage to the hemodialysis tube;
3) the whole body adopts a plate-shaped structure, so that the volume of the utility model is large, and the carrying is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hemodialysis is with fixed protective sheath device of hemodialysis pipe, it carries more conveniently, and the hemodialysis pipe receives the duplicate protection of cylindrical shell and cylindrical inner shell, and when taking out the hemodialysis pipe, can prevent that the hemodialysis pipe from receiving the scraping, and then effectively prevent that the hemodialysis pipe from suffering the extrusion and damaging to eliminate the threat that causes the treatment because of the hemodialysis pipe damages, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a blood is passed through with fixed protective sheath device of hemodialysis tube, includes cylindrical shell, cylindrical upper cover, elastic component, cylindrical inner shell and end cap, the bottom of cylindrical shell is the enclosed construction, just the upper end of cylindrical shell is open structure, cylindrical upper cover spiro union is in the upper end of cylindrical shell is outside, elastic component installs the inner diapire upper portion of cylindrical shell, the bottom of cylindrical inner shell is the enclosed construction, just the upper end of cylindrical inner shell is open structure, place the cylindrical shell the inside of cylindrical shell, just the bottom of cylindrical inner shell with elastic component's upper portion is inconsistent to be set up, the end cap is plugged the upper end of cylindrical inner shell.
Preferably, the end part of the bottom end of the cylindrical shell is also fixedly provided with a cylindrical base, and the diameter of the cylindrical base is equal to the outer diameter of the cylindrical upper cover.
Through adopting above-mentioned technical scheme, there is cylindrical base at the bottom end fixed mounting of cylindrical shell, and the diameter of cylindrical base equals with the external diameter of cylindrical upper cover, cylindrical base and cylindrical upper cover synergism like this, can effectively strengthen the stress strength at cylindrical shell both ends, when processing production the device, set up the diameter of cylindrical base and the external diameter of cylindrical upper cover and be greater than the external diameter of cylindrical shell, like this when the device receives the extrusion, the preferential atress of cylindrical base and cylindrical upper cover, thereby the barrier propterty of reinforcing the device to the hemodialysis pipe.
Preferably, the plug is a cylindrical plug, two grooves are symmetrically formed in the upper surface of the plug, the diameter of the plug is equal to the inner diameter of the cylindrical outer shell, and the outer diameter of the cylindrical inner shell is smaller than the inner diameter of the cylindrical outer shell.
Through adopting above-mentioned technical scheme, even cylindrical shell is pressed to be out of shape or even fracturing like this, the end cap also can support cylindrical shell, further guarantees that cylindrical inner shell is not pressed to be out of shape to prevent that the inside hemodialysis pipe of cylindrical inner shell from receiving the damage, secondly, two recesses are used for holding the finger, conveniently hold between the fingers the end cap and take out cylindrical inner shell from the inside of cylindrical shell.
Preferably, the outer part of the upper end of the cylindrical shell is provided with an external thread, and the inner side wall of the cylindrical upper cover is provided with an internal thread matched with the external thread.
Through adopting above-mentioned technical scheme, utilize external screw thread and internal thread to cooperate, the cylindrical upper cover spiro union of being convenient for is outside in the upper end of cylindrical shell to it is more convenient to make the device use.
Preferably, a connecting seat is integrally arranged on the upper surface of the cylindrical upper cover in the middle, a mounting hole is formed in the connecting seat, and a hanging ring is arranged in the mounting hole.
By adopting the technical scheme, the device is convenient to lift through the hanging ring, so that the device is convenient to carry.
Preferably, the junction of the inner side wall of the cylindrical upper cover and the inner top wall of the cylindrical upper cover is further provided with a clamping groove, a rubber sealing ring is clamped inside the clamping groove, and the rubber sealing ring is matched with the upper end of the cylindrical shell.
Through adopting above-mentioned technical scheme, rubber seal is used for strengthening the sealing performance between cylindrical upper cover and the cylindrical shell, can prevent to cover the inside of cylindrical shell still can advance dirt when cylindrical upper cover to make the device dustproof performance better.
Preferably, the outer side wall of the cylindrical shell is further integrally formed with a horizontally arranged annular reinforcing rib, the outer side wall of the cylindrical shell is further integrally formed with a vertically arranged bar-shaped reinforcing rib, and the bar-shaped reinforcing rib and the annular reinforcing rib are arranged in an intersecting manner.
By adopting the technical scheme, the strip-shaped reinforcing ribs and the annular reinforcing ribs which are arranged in an intersecting manner can effectively enhance the stress strength of the cylindrical shell.
Preferably, the elastic member includes first spring holder, spring and second spring holder, first spring holder fixed mounting be in the inner diapire upper portion of cylindrical shell, spring fixed mounting be in on the upper surface of first spring holder, second spring holder fixed mounting be in the upper end tip of spring, just the side of second spring holder with the laminating of the inside wall of cylindrical shell sets up, the upper surface of second spring holder with the bottom of cylindrical shell is inconsistent to be set up.
Through adopting above-mentioned technical scheme, under first spring holder, spring and second spring holder synergism, can prevent that cylindrical inner shell from rocking in the inside of cylindrical shell to make the device performance relatively stable.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the matching mode of the cylindrical outer shell and the cylindrical inner shell to arrange the cylindrical inner shell inside the cylindrical outer shell, and then the hemodialysis tube is arranged inside the cylindrical inner shell, so that the hemodialysis tube is protected by the cylindrical outer shell and the cylindrical inner shell, and meanwhile, when the hemodialysis tube is taken out, the hemodialysis tube can be prevented from being scratched, and further the hemodialysis tube can be effectively prevented from being damaged by extrusion, thereby eliminating the threat to treatment caused by the damage of the hemodialysis tube;
2. the utility model discloses, overall structure adopts cylindrical structure, and an organic whole is equipped with bar strengthening rib and the annular strengthening rib of crossing setting on the lateral wall of cylindrical shell for its holistic compressive strength is stronger, and the diameter of end cap equals the internal diameter of cylindrical shell simultaneously, and the external diameter of cylindrical inner shell is less than the internal diameter of cylindrical shell, even cylindrical shell is pressed and is out of shape or even fracturing like this, the end cap also can support cylindrical shell, further guarantees that cylindrical inner shell is not pressed and is out of shape, thereby prevents that the hemodialysis pipe in the cylindrical inner shell from receiving the damage;
3. the utility model discloses, overall structure adopts cylindrical structure, can effectively reduce its volume, and simultaneously an organic whole is equipped with the connecting seat between two parties on the upper surface of cylindrical upper cover, has seted up the mounting hole in the inside of connecting seat, has the link at the internally mounted of mounting hole to it is more convenient to make it carry.
Drawings
FIG. 1 is a schematic structural view of a hemodialysis tube retaining sheath apparatus according to an embodiment;
FIG. 2 is a schematic front view of a hemodialysis tube retaining sheath apparatus according to an embodiment;
FIG. 3 is a schematic cross-sectional view taken along section line A-A of FIG. 2;
FIG. 4 is a schematic diagram of an exploded view of one embodiment of a hemodialysis tube retaining sheath apparatus;
FIG. 5 is an exploded view of another perspective of one embodiment of a hemodialysis tube retaining sheath apparatus;
FIG. 6 is a schematic cross-sectional exploded view of one embodiment of a hemodialysis tube retaining sheath apparatus;
fig. 7 is a partially enlarged schematic view of fig. 6.
In the figure: 1. a cylindrical housing; 2. a cylindrical base; 3. a cylindrical upper cover; 4. a strip-shaped reinforcing rib; 5. an annular reinforcing rib; 6. a connecting seat; 7. hanging a ring; 8. an elastic member; 9. a cylindrical inner shell; 10. a plug; 11. a first spring seat; 12. a spring; 13. a second spring seat; 14. an external thread; 15. an internal thread; 16. a rubber seal ring; 17. mounting holes; 18. a groove; 19. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution:
the utility model provides a hemodialysis is with fixed protective sheath device of hemodialysis pipe, as shown in fig. 1-4, including cylindrical shell 1, cylindrical upper cover 3, elastic component 8, cylindrical inner shell 9 and end cap 10, the bottom of cylindrical shell 1 is enclosed construction, just the upper end of cylindrical shell 1 is open structure, 3 spiro unions of cylindrical upper cover are in the upper end of cylindrical shell 1 is outside, elastic component 8 is installed the inner diapire upper portion of cylindrical shell 1, the bottom of cylindrical inner shell 9 is enclosed construction, just the upper end of cylindrical inner shell 9 is open structure, cylindrical inner shell 9 is placed the inside of cylindrical shell 1, just the bottom of cylindrical inner shell 9 with the upper portion of elastic component 8 is inconsistent to be set up, end cap 10 is plugged in the upper end of cylindrical inner shell 9.
Specifically, as shown in fig. 1-2, a cylindrical base 2 is further fixedly mounted at the bottom end of the cylindrical housing 1, and the diameter of the cylindrical base 2 is equal to the outer diameter of the cylindrical upper cover 3.
Through adopting above-mentioned technical scheme, there is cylindrical base 2 at the bottom end fixed mounting of cylindrical shell 1, and the diameter of cylindrical base 2 equals with cylindrical upper cover 3's external diameter, cylindrical base 2 and cylindrical upper cover 3 synergism like this, can effectively strengthen the stress intensity at cylindrical shell 1 both ends, when the processing production the device, set up the diameter of cylindrical base 2 and the external diameter of cylindrical upper cover 3 and be greater than cylindrical shell 1's external diameter, when the device received the extrusion like this, cylindrical base 2 and the preferential atress of cylindrical upper cover 3, thereby the barrier propterty of reinforcing the device to the hemodialysis pipe.
Specifically, as shown in fig. 3 and 4, the plug 10 is a cylindrical plug, two grooves 18 are symmetrically formed in the upper surface of the plug 10, the diameter of the plug 10 is equal to the inner diameter of the cylindrical outer shell 1, and the outer diameter of the cylindrical inner shell 9 is smaller than the inner diameter of the cylindrical outer shell 1.
Through adopting above-mentioned technical scheme, even cylindrical shell 1 is pressed to warp even fracturing like this, end cap 10 also can support cylindrical shell 1, further guarantees cylindrical inner shell 9 not pressed to warp to prevent that the inside hemodialysis of cylindrical inner shell 9 from receiving the damage, secondly, two recesses 18 are used for holding the finger, conveniently hold between the fingers end cap 10 and take out cylindrical inner shell 9 from the inside of cylindrical shell 1.
Specifically, as shown in fig. 4 and 5, an external thread 14 is formed on the outer portion of the upper end of the cylindrical housing 1, and an internal thread 15 matched with the external thread 14 is formed on the inner side wall of the cylindrical upper cover 3.
Through adopting above-mentioned technical scheme, utilize external screw thread 14 and internal thread 15 to cooperate, the cylindrical upper cover 3 spiro union of being convenient for is outside at the upper end of cylindrical shell 1 to it is more convenient to make the device use.
Specifically, as shown in fig. 4, a connecting seat 6 is integrally arranged in the middle of the upper surface of the cylindrical upper cover 3, a mounting hole 17 is formed in the connecting seat 6, and a hanging ring 7 is mounted in the mounting hole 17.
By adopting the technical scheme, the device is convenient to lift through the hanging ring 7, so that the device is convenient to carry.
Specifically, as shown in fig. 6 to 7, a clamping groove 19 is further formed at a junction of the inner side wall of the cylindrical upper cover 3 and the inner top wall thereof, a rubber sealing ring 16 is clamped inside the clamping groove 19, and the rubber sealing ring 16 is matched with the upper end of the cylindrical shell 1.
Through adopting above-mentioned technical scheme, rubber seal 16 is used for strengthening the sealing performance between cylindrical upper cover 3 and cylindrical shell 1, can prevent to cover cylindrical upper cover 3 the inside of cylindrical shell 1 still can advance dirt to make the device dust proofness can be better.
Specifically, as shown in fig. 1, a horizontally arranged annular reinforcing rib 5 is further integrally formed on the outer side wall of the cylindrical housing 1, a vertically arranged bar-shaped reinforcing rib 4 is further integrally formed on the outer side wall of the cylindrical housing 1, the bar-shaped reinforcing rib 4 and the annular reinforcing rib 5 are arranged in an intersecting manner, and the cross sections of the bar-shaped reinforcing rib 4 and the annular reinforcing rib 5 are both semicircular.
By adopting the technical scheme, the strip-shaped reinforcing ribs 4 and the annular reinforcing ribs 5 which are arranged in an intersecting manner can effectively enhance the stress strength of the cylindrical shell 1; all set up the cross-section of bar strengthening rib 4 and annular strengthening rib 5 into semi-circular, can prevent that bar strengthening rib 4 and annular strengthening rib 5 from having the edges and corners and put the hand of hindering medical personnel.
Specifically, as shown in fig. 3 to 4, the elastic member 8 includes a first spring seat 11, a spring 12 and a second spring seat 13, the first spring seat 11 is fixedly mounted on the upper portion of the inner bottom wall of the cylindrical outer shell 1, the spring 12 is fixedly mounted on the upper surface of the first spring seat 11, the second spring seat 13 is fixedly mounted on the upper end portion of the spring 12, the side surface of the second spring seat 13 is attached to the inner side wall of the cylindrical outer shell 1, and the upper surface of the second spring seat 13 is abutted to the bottom end of the cylindrical inner shell 9.
Through adopting above-mentioned technical scheme, under first spring holder 11, spring 12 and second spring holder 13 synergism, can prevent that cylindrical inner shell 9 from rocking in cylindrical outer shell 1's inside to make the device performance relatively stable.
The working principle is as follows: the blood permeable tube fixing protective sleeve device for hemodialysis adopts the mode that the cylindrical outer shell 1 is matched with the cylindrical inner shell 9, the cylindrical inner shell 9 is arranged inside the cylindrical outer shell 1, and then the blood permeable tube is arranged inside the cylindrical inner shell 9, so that the blood permeable tube is doubly protected by the cylindrical outer shell 1 and the cylindrical inner shell 9, and meanwhile, when the blood permeable tube is taken out, the blood permeable tube can be prevented from being scratched, and further the blood permeable tube is effectively prevented from being damaged by extrusion, and therefore the threat to treatment caused by the damage of the blood permeable tube is eliminated;
the whole structure adopts a cylindrical structure, and the outer side wall of the cylindrical outer shell 1 is integrally provided with a bar-shaped reinforcing rib 4 and an annular reinforcing rib 5 which are arranged in an intersecting way, so that the whole compressive strength is stronger, meanwhile, the diameter of the plug 10 is equal to the inner diameter of the cylindrical outer shell 1, and the outer diameter of the cylindrical inner shell 9 is smaller than the inner diameter of the cylindrical outer shell 1, so that even if the cylindrical outer shell 1 is pressed to deform or even to be fractured, the plug 10 can also push the cylindrical outer shell 1 against the cylindrical inner shell 9, further ensuring that the cylindrical inner shell 9 is not pressed to deform, and further preventing the hemodialysis tube in the;
overall structure adopts cylindrical structure, can effectively reduce its volume, simultaneously on cylindrical upper cover 3's the upper surface an organic whole placed in the middle be equipped with connecting seat 6, has seted up mounting hole 17 in the inside of connecting seat 6, has link 7 at the internally mounted of mounting hole 17 to it is more convenient to make it carry.
The using method comprises the following steps: during the use, unscrew cylindrical upper cover 3, the inside of recess 18 is inserted to the finger, pinch end cap 10 and take out cylindrical inner shell 9 from the inside of cylindrical shell 1, then pull out end cap 10 from cylindrical inner shell 9, pack the inside of cylindrical inner shell 9 into with the hemodialysis pipe that has packed, and fill in end cap 10 inside the open end of cylindrical inner shell 9, then put into the inside of cylindrical shell 1 with cylindrical inner shell 9, screw up cylindrical upper cover 3 can in the upper end outside of cylindrical shell 1, can hand ring 7 carrying device.
The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a hemodialysis is with fixed protective sheath device of hemodialysis pipe which characterized in that: comprises a cylindrical outer shell (1), a cylindrical upper cover (3), an elastic component (8), a cylindrical inner shell (9) and a plug (10), wherein the bottom end of the cylindrical outer shell (1) is of a closed structure, the upper end of the cylindrical shell (1) is of an open structure, the cylindrical upper cover (3) is screwed outside the upper end of the cylindrical shell (1), the elastic component (8) is arranged on the upper part of the inner bottom wall of the cylindrical outer shell (1), the bottom end of the cylindrical inner shell (9) is of a closed structure, the upper end of the cylindrical inner shell (9) is of an open structure, the cylindrical inner shell (9) is placed in the cylindrical outer shell (1), and the bottom end of the cylindrical inner shell (9) is abutted to the upper part of the elastic component (8), and the plug (10) is plugged at the upper end of the cylindrical inner shell (9).
2. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the bottom end of the cylindrical shell (1) is fixedly provided with a cylindrical base (2), and the diameter of the cylindrical base (2) is equal to the outer diameter of the cylindrical upper cover (3).
3. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the plug (10) is cylindrical, two grooves (18) are symmetrically formed in the upper surface of the plug (10), the diameter of the plug (10) is equal to the inner diameter of the cylindrical outer shell (1), and the outer diameter of the cylindrical inner shell (9) is smaller than the inner diameter of the cylindrical outer shell (1).
4. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the outer portion of the upper end of the cylindrical shell (1) is provided with an external thread (14), and the inner side wall of the cylindrical upper cover (3) is provided with an internal thread (15) matched with the external thread (14).
5. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the upper surface of the cylindrical upper cover (3) is integrally provided with a connecting seat (6) in the middle, a mounting hole (17) is formed in the connecting seat (6), and a hanging ring (7) is arranged in the mounting hole (17).
6. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the junction of the inner side wall of the cylindrical upper cover (3) and the inner top wall of the cylindrical upper cover is further provided with a clamping groove (19), a rubber sealing ring (16) is clamped inside the clamping groove (19), and the rubber sealing ring (16) is matched with the upper end of the cylindrical shell (1).
7. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: the outer side wall of the cylindrical shell (1) is further integrally formed with a horizontally arranged annular reinforcing rib (5), the outer side wall of the cylindrical shell (1) is further integrally formed with a vertically arranged bar-shaped reinforcing rib (4), and the bar-shaped reinforcing rib (4) and the annular reinforcing rib (5) are arranged in an intersecting manner.
8. The hemodialysis tube fixing protective sleeve device as set forth in claim 1, wherein: elastic component (8) include first spring holder (11), spring (12) and second spring holder (13), first spring holder (11) fixed mounting be in the inner diapire upper portion of cylindrical shell (1), spring (12) fixed mounting be in on the upper surface of first spring holder (11), second spring holder (13) fixed mounting be in the upper end tip of spring (12), just the side of second spring holder (13) with the interior lateral wall of cylindrical shell (1) is laminated mutually and is set up, the upper surface of second spring holder (13) with the bottom counterbalance of cylindrical inner shell (9) sets up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772610.8U CN211188496U (en) | 2019-10-22 | 2019-10-22 | Hemodialysis is with fixed protective sheath device of hemodialysis pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772610.8U CN211188496U (en) | 2019-10-22 | 2019-10-22 | Hemodialysis is with fixed protective sheath device of hemodialysis pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211188496U true CN211188496U (en) | 2020-08-07 |
Family
ID=71862291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921772610.8U Expired - Fee Related CN211188496U (en) | 2019-10-22 | 2019-10-22 | Hemodialysis is with fixed protective sheath device of hemodialysis pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211188496U (en) |
-
2019
- 2019-10-22 CN CN201921772610.8U patent/CN211188496U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20211022 |